A SQUID-Based Picovoltmeter for Quantum Resistors
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Low Temperature Physics"
DOI: 10.1007/s10909-020-02388-4
Abstract: We present a sensitive voltage amplifier suited for measurements of source impedances in the k$$\Omega$$ range at dilution refrigerator temperatures. The circuit is based on a commercial dc SQUID, an impedance matching transformer, and it… read more here.
Keywords: quantum resistors; picovoltmeter quantum; based picovoltmeter; squid based ... See more keywords
SQUID-based ultralow-field MRI of a hyperpolarized material using signal amplification by reversible exchange
Sign Up to like & getrecommendations! Published in 2019 at "Scientific Reports"
DOI: 10.1038/s41598-019-48827-5
Abstract: The signal amplification by reversible exchange (SABRE) technique is a very promising method for increasing magnetic resonance (MR) signals. SABRE can play a particularly large role in studies with a low or ultralow magnetic field… read more here.
Keywords: field; amplification reversible; squid based; field mri ... See more keywords
Environmental Noise Cancellation for High-TC SQUID-Based Magnetocardiography Systems Using a Bistage Active Shield
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2017.2740722
Abstract: An active noise cancellation method is proposed for superconducting quantum interference devices (SQUID)-based magnetocardiography systems working out of magnetically shielded rooms. Using YBCO high-Tc rf-SQUID magnetometers as magnetic field sensors, an active shielding system was… read more here.
Keywords: frequency; field; squid based; bistage ... See more keywords
Low Noise Active Shield for SQUID-Based Magnetocardiography Systems
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Applied Superconductivity"
DOI: 10.1109/tasc.2017.2784683
Abstract: A light weight and low-cost active magnetic shield system is proposed for a single channel SQUID-based magnetocardiography system equipped for operating at liquid nitrogen temperature without passive magnetic shield. The developed active shield, using coils… read more here.
Keywords: system; shield; squid based; active shield ... See more keywords